Improvement in heel-rounding machines



dilated tapes JOHN O. WHITE, OF AUBURN, NEW YORK.

Letters Patent No. 106,901, dated August 30, 1874).

IMPROVEMENT IN HEEL-RUNDING MACHINES.

The Schedule referred to in these Letters Patent and making part of thesame.

machine for rounding the heels of boots and shoes of all sizes, wherebymuch labor and valuable time is saved; and

The invention consists in the construction and-a1:- rangement of parts,as hereinafter described.

. Figure l represents atop or plan view of the machine.

Figure 2 is a side elevation.

Similar letters of reference indicate corresponding parts.

A represents the frame, which is fastened to a bed represented by B.'

C' is the driving-shaft, which is revolved in a sleevel box, E, formedinthe frame.

F is a bevel-pinion on the end of the shaft C.

G is a horizontal driving-wheel, which is supported on a vertical shaft,H, which shaft revolves in boxes attached to the frame, as seen at 'it'. This wheel G is.l both a bevel and a spur-gear wheel.

Its lower side, I, is a bevel-gear, and the wheel 'receives motion fromthe bevel-pinion F.

Its outer periphery, J, is provided with spur-wheel cogs, which engagewith the pinion K on the vertical shaft L.

The top side of the horizontal wheel G has two cam-ribs projecting fromit, seen in the drawing at m m'.

The cam fm operates the presser-bar N, which is connected with the slideo by the jointed bar p.

The slide o is provided with a friction-roll, q, which Atraverses thecam, and which has the effect of raising the press-bar N.

VR is a spring, which is connected with the frame, but operates ou theslide o, to draw down the end of the press-barV after it has been raisedand after-the roller has left the cam ym. After this roll has left thecam it traverses on the face or plane surface of the wheel G, and duringthis time the presser is held up from the heel and is stationary.

S is the presser, and, as seen in the drawing, it is pressing uponthe-leather heel T, which is being cnt.

n is the bed upon the end of the upright shaft L, upon which the heelrests. This bed is removable so that a-variety of them may be used.

to any desired bevel. It is attached to a carriage,`

V, which slides or is moved from or toward the shaft L, sofas to adaptthe position of the knife to any desired size or diameter of heel.

The carriage a slides 011 the bed yu in ways like the slide-rest of alathe, on which ways it may be fastenedin any desired position.

The bed a revolves around the shaft L withan intermitting motion causedbythe action of the cam on.. v

lVe have before referred to the spur-pinion K, which engages with thespur-cogs on the wheel G.

This spur-pinion is attached toa sleeve-coupling, x.

y is a shifting frame with a friction-roll, z, attached to it, whichroll traverses the cam m as the wheel G revolves,-and, in doing so, itraises the coupling and pinion.

The bed u is attached to the other part of the coupling.

The shaft L is stationary, and both parts of the coupling revolve aroundit.

The bed u and the heel to be out are both stationarywhen the machine isin operation. The knife revolves around the heel when the lower orsliding part of the coupling is raised so as to-engage with the sleeveof the bed u, (or upper coupling.)

The action of the presser on the heel and the cutting of the knife aresimultaneous, and both intermit and stand stationary at the same time,'their motion and periods of rest being governed by the cams andrevolutions ofthe wheel G.

To the presser-lever N there is a sliding stopattached, marked f.

This stop is supported and guided by a pin in the vstand C', whichsupports the presser-bar N. As the bar is raised the stop is drawn backand allows the bed u to start.

After the bed w andthe knife have made a revolution the slide f ispushed down in time to stop it, and this time is just when both of thetraversing rolls have left their respective cams, and the period of restfor both the bed and the presser commences. This pe riod of time issuticient'to allow the attendant to remove the heel that has beenfinished and to replace it with another to be finished by anotherrevolution of the bed n. I

The bevel of the knife is governed by the set-screw and nut d, whichscrew passes through the top of the hinged frame c, to which the knifeis attached.

The knife itself is marked t".

j' is a stand which supports the coupling-shifter y, and

It is a stand on the stand j', which has a spring at its upper end whichoperates on thc shifter so as to force down the coupling :c when thetraversing roll leaves the @am m.

It will he noticed that the pinion K has a. broad face, which allows itto be slipped np and down Without being thrown out of gear with thedriving-spur cogs J.

This machine may be operated by the crank C", by lmnd, or by otherpower.

B' lrepresent-s a coupling on the driving-shaft for stopping the motionof' the machine whenever desired.

I claim as new and desire to secure by Letters Patent- 1. A rotarycarriage, W, havingclutch-sleeve thereon, sliding clutch x, broad pinionK, and spur J, all combined with the shifting frame Y .Z and cam m, torotate the knife intermittently, as set forth.

ing stop, f, on the vibratinglever N, for the purpose of stopping theknife and removing the pressure ou blank simultaneously, so that saidblank may be removed therefrom in the manner described.

JOHN G. WHITE.

Witnesses:

HORACE T. Coon, J No. E. LEONARD.

